A power efficient gain adjustment technique is described to realize programmable gain current mirror. The dissipation power changes over the wide gain range of structure are almost negligible. This property is in fact very interesting from power management perspective, especially in analog designs. The simple structure and constant frequency bandwidth are other ever-interesting merits of propos...

A digital look-up table adaptive predistortion technique using a six-port receiver for power amplifier linearization is presented. The system is designed in Ka-band for a DVB-S2 satellite link. We use a six-port receiver at the linearizationloop in place of classic heterodyne receivers. The six-port receiver is implemented by the use of passive microwavecircuits and detector diodes. This approa...

in this paper, the performance of two types of facts devices in order to enhance the power system static voltage stability has been investigated. these devices include static var compensator (svc) and thyristor controlled series capacitor (tcsc). the modeling of the single machine infinite bus (smib) and aforesaid devices has been made up in steady state mode with disregarding of the generator ...

Objective: The study attempts to understand the effectiveness of the self-affirmation intervention for subclinical depression in Indian adults. Methods: An experimental research design was employed. Using purposive sampling, 80 participants with subclinical depression were chosen who were randomly allocated equally to the experimental (intervention) and control (non-intervention) conditions. T...

Biorhythm is one of the latest topics in the field of identifying mind’s ergonomics. Of all the performances with which biorhythm deals is the physical performance. The purpose of present research is to study the effect of physical cycle of biorhythm on the designated factors of physical fitness among teenage volleyball players in the city of Qom. In the present field research, 30 people were...

This paper introduces a dual-switchhigh step-up DC-DC power converter. The proposed converter features high voltage gain, relatively low cumulative stored energy over its inductors, stress on the active switches, and efficiency, even at duty ratio. An assessment of against conventional boost is presented in terms steady-state time, efficiency. shows reduction 81.25% 62.5% inductors to comply wi...